Add GLStreamTextureImage

content/common/gpu/media/avda_shared_state.h

Index: content/common/gpu/media/avda_shared_state.h
diff --git a/content/common/gpu/media/avda_shared_state.h b/content/common/gpu/media/avda_shared_state.h
index eb62681fcd5bd13474c0146f31eabaf1f8524b77..3b384469944cbca029f30ec5949520eedc4964b6 100644
--- a/content/common/gpu/media/avda_shared_state.h
+++ b/content/common/gpu/media/avda_shared_state.h
@@ -15,6 +15,7 @@
 
 namespace gfx {
 class SurfaceTexture;
+class GLShareGroup;
 }
 
 namespace content {
@@ -50,10 +51,26 @@ class AVDASharedState : public base::RefCounted<AVDASharedState> {
     return surface_texture_is_attached_;
   }
 
+  // TODO(liberato): move the surface texture here and make these calls
+  // attach / detach it also.  There are several changes going on in avda
+  // concurrently, so I don't want to change that until the dust settles.
+  // AVDACodecImage would no longer hold the surface texture.
+
   // Call this when the SurfaceTexture is attached to a GL context.  This will
   // update surface_texture_is_attached(), and set the context() and surface()
   // to match.
-  void did_attach_surface_texture();
+  void DidAttachSurfaceTexture();
+
+  // Call this when the SurfaceTexture is detached from its GL context.  This
+  // will cause us to forget the last binding.
+  void DidDetachSurfaceTexture();
+
+  // Get and set the share group for our SurfaceTexture.
+  void set_share_group(const scoped_refptr<gfx::GLShareGroup>& share_group) {
+    share_group_ = share_group;
+  }
+
+  gfx::GLShareGroup* share_group() const { return share_group_.get(); }
 
  private:
   // Platform gl texture Id for |surface_texture_|.  This will be zero if
@@ -72,6 +89,9 @@ class AVDASharedState : public base::RefCounted<AVDASharedState> {
   scoped_refptr<gfx::GLContext> context_;
   scoped_refptr<gfx::GLSurface> surface_;
 
+  // The GL share group that we must be to reference our surface texture.
+  scoped_refptr<gfx::GLShareGroup> share_group_;
+
  protected:
   virtual ~AVDASharedState();